Use of a oil separator in the PCV System?

[trtenterprises]

What is the general consensus of using an oil separator in the PCV System between the engine and air intake. I have a 2013 3.5L Explorer Sport. I know they are recommended for the Eco-Boost F150's. Let me give a little more information on my question.

On a naturally aspirated engine the blow by is pulled from the engine through the PCV valve and directed into the air intake where it is mixed with the gasoline then through the intake valves and into the cylinders. Since the blow by is mixed with the fuel it washes the valve seats so there is no build up.

With the Eco-Boost motor the PVC system directs the flow exactly the same as the naturally aspirated engine. Except the problem is that the gasoline is injected directly through the heads and into the cylinders. This allows the oily blow by to build up on the intake valve seats where carbon starts to cause the valves to leak compression.

 

[Turdle]

http://www.explorerforum.com/forums/showthread.php?t=404902&highlight=oil+separator

 

[vq5speed]

I set one up a catch can on mine when I discovered the new PCV valve I had just replaced was still not keeping the oil from getting sucked into the intake. I made one out of a small mason jar. Basically a jar with inlet tube that went down in and the outlet had a shorter tube nearer the top. But after a while I realized the suction was still so strong it literally pulled the oil up around the inlet tube onto the underside of the lid and in to the outlet tube. So I had use a taller jar extended the inlet tube longer and added oil absorbent media in the jar to soak up the oil so it would not be pulled out the outlet.

 

[trtenterprises]

Thank you for the info. I haven't checked the PCV valve yet. I plan the do some after market changes to my Explorer and I didn't know if this was showing up as a problem.
would you keep me informed on how your install is working out?
Tom T.

 

[vq5speed]

About mine? its working out great.

 

[trtenterprises]

Very innovated. Thank you for sharing the photo's. Let me know how well it works for you.
Tom T.

 

[trtenterprises]

Back in 2015 I brought up the issue of oil catch cans for use on a 3.5L twin turbo Explorer. IT took me some time but I manufactured one from a filter housing I had laying around in my garage. I ordered the stock hose from FORD and cut the quick connects to use in my installation. I put 7,000 miles of the odometer and checked it when I changed oil and filter.

It had oil inside when opened. To me any oil getting to the valves is to much to take a chance of coating the intake valves with carbon from the oil residue from PCV to the air intake. After this oil change I had a custom tune done that increased the turbo output. I will let you know if the increase in boost increases the amount of oil getting through the PVC system.

 

[jd4242]

I use them on almost all my vehicles. .i use a oil/air separator from harbor freight. .put it inline with the hose that goes back to the manifold not air tube